Furnace-arch.



2 SHEETS-SHEET l.

Patented July 29,1913.

P; GIRTANNR.

PURNACE AR APPLICATION FILED MAR.13, 1911. 1,068,51..

f Illll| F. GIRTANNER.

PURNAGE ARCH. APPLICATION :FILED 11111.13, 1911.

15,968,551 a Patented July 29, 1913.

2 SHEETS*SHEET 2. W.. g 1 E FREDERICK GIBTNNEB, OF ST. LOUIS, MISSOURI, ASSIG'NOB. VT0 LAGLEDE-CHRISTY CLAY PRODUCTS COMPANY, OF ST. LOUIS. MISSOURI, A CORPORATION OF MIS- SOURI. i

' FURNACE-ARCH; t A

1,963,531, Specication ofLette'r Patent. Patented'ulyQg, 1913 Original application led January S, 1910, Serial No. 537,035. Renewed 603,922. Divided and this application filed March 13, 1911'.

January 21, 1911, serial no. semina 614.029.

To all lwhom it may concern:

Be it known that I, FREDERICK GIRTANNER, a-citizen of the United States of America, and a resident of St. Louis, Missouri, have .invented certain new and useful Improvements in Furnace-Arches, of which the following is a full, clear, and exact descrip-- tion, reference being had to theaccompanying drawings, forming part of this speciiication.,I w W This invention relates to furnace archesin general, but is more especially serviceable in connection with fiat top arches, such as that contemplated in my application, Serial No. 537,035, which was filed January 8,

ject, my invention contemplates the provision of anged beams which spaced apart by means of stifl'eners or spacing members, and tile supporting brackets y.

carried by said beams.

Other and further objects will appear in specifically pointed out in the appended claims, reference being had to the accompanying drawings exemplifying the invention,

and in which- Fig. 1 is a vertical longitudinal section through a furnace equipped with the improved arch; Fig. 2 is a transverse verticalJ section on line 11-11, Fig; l; Fig. 3 is a side View of one of lthe tile' supporting brackets, the t-iles being removed therefrom to showthe main supporting beams in vertical section; Fig. 4 is a horizontal section on the line IV-IV, Fig. 3.

Referring now in detail to the drawings,

1 represents the front wall, and 2 the side walls of a furnace equipped with the improved arch. i

3 are the boiler tubes. 4 represents the chain grate frame of any preferable construction.

5 represents the main beams seated :Brmly are rigidly held in the side walls 2 of the furnace andiextending transversely of the furnace from one side wall to the other. rIhese main beams 5-5 are preferably of a form having flanges 5a along their lower edges.

Suitable means for supporting longitudi-` nally arranged rows of tlles in pursuance of' the objects of my inventiomareprovided by a plurality of truss-like structures, each comfprising a pair of oppo'sitely disposed end brackets 6\and 7 seated respectively upon the outer flanges of the beams 5 and a central brace 8.` The inwardly projecting arms 9 vof 'the brackets 6 and 7 are provided with fiangesA 10 which are connected to the iian es 11 of the brace 8 by means of bolts 12 which draw the ianges 10 and 11 securely against the webs of the beams 5. It will be seen, therefore, that the brace 8 of each tile suspension structure has a nqultiple function in that it spaces the beams 5 and acts as a stiii'ener thereto, and at the same time has stresses transmitted directly thereto by the' bolts 12 and through the webs of the beams 5.

Each of the ends 6 7 is provided with extensions 13 which approximately meet centrally of th arch structure. Ends 6-7 and extensions 13 are provided with lower flanges 14, so that a continuous bracket from front to rear is provided, suitable for supporting the fire brick or tiles.

n -wiunbe noted that the main beams 5 are located at about aprn'oXimat-ely4 the center of the lower edge of the ends 6-7 so that the tiles carried by each end 6 or 7, or their 1 aggregate load, are distributed equally onv either side of the center or point of support. The load being balanced thus, the greatest possible eiiiciency'of material is obtained, permitting a lighter construction. Hence, we have a structure in which the load is evenly balanced on and equally distributed between the main supporting beams by reason of approximately one-half of the entire weight of all the tiles being loaded onto the" outer iange of each beam 5. In other words, the load represented byfa line of fire brick or tile supported by the ends 6-7 is divided up into four parts, one on each side of each of the main supporting beams 5.

In the aforesaid application, the idea of dividing up the load on a pair of main supporting beams by dividing up the bracket into a plurality of parts is described, but in ings, wherein grooves 17 are formed in the side faces of the iirebricks or tiles toengage flanges 14 in the usual way to protect the metallic structure from heat, as is customary. v

r I claim:

1. In a device of the class described, main supporting beams, a bracket member having a portion resting against and secured to one of said supporting beams, said bracket member being provided with a tile-carrying po-rtion, said portion extending transversely of and located below said beam, Aa similar bracket located in the same plane as the irst named bracket and having a portion similarly resting against and secured to another of said beams, said beams being spaced apart,

said bracket members being secured to opposite sides of said beams, and each having an extremity of their tile-carrying portions adjacent when in assembled relation.

2. In a device of the class described, main supporting beams, a bracket member having a portion adapted to rest against and be sevcured to one of said supporting beams, said.

bracket member being provided with a tilecarrying portion, said portion extending transversely of and located below said beam, saidv tile-carrying portion being approximately bisected by the plane of said beam, a

Asimilar bracket member similarly located with respect to another of said supporting beams and lying in the same plane as said first named bracket, said bracket members each having an extremity of their tile-carrying portion adjacent when in assembled relation.

3. In a device of the class described, main supporting beams, a bracket member having a portion adapted to rest against and be secured to one of said supporting beams, said bracket member being provided with a tile-carrying portion, said portion extending transversely of and located below said beam, a similar bracketlocated in the same plane as the iirst named bracket and having a porg tion similarly adapted to rest against another of said beams, said bracket membersl each having an extremity oftheir tile-carrying portions adjacent when in assembled relation, and a spacing member extending between said beams located above said bracket-carryingl portions.

4. In a device of the class described, main supporting beams, a bracket member having a portion adapted to rest againstl and be secured to one of said supporting beams, said bracket member being provided with a tile carrying portion, said portion extending transversely of and located below said beam, a similar bracket located in the same plane as the first named bracket and having a portion similarly adapted to rest against an; other of said beams, said bracket members each having an extremity of their tile carrying portions adjacent when in assembled relation, and a spacing member extending between said beams locatedabove said bracket `carrying portions, Isaid spacing member being secured to said supporting beams and to the adjacent'beam contacting portions of said bracket members.

lFREDERICK GIRTANNER. 

